Permutations

Directions:
1. Watch the two videos below and take notes:

a) "Counting Using Permutations" - http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-123s.html
b) "Using Permutations" - http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-582s.html

2. Open the document below called "Permutations - Regents Practice" and answer each question. Please show all your work.